PPP协议族中，哪个协议提供了对网络层的支持？（）

多项选择题PPP协议族中，哪个协议提供了对网络层的支持？（）

A.IPCP
B.LCP
C.IPXCP
D.SNA

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1.单项选择题在帧中继网络中，帧中继通过（）协议监控PVC的状态。

A.DLCI
B.BECN
C.LMI
D.FECN

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2.单项选择题 输入哪条命令可以看到以下信息？（）

A.display ip routing-table
B.display ospf lsa
C.display ospf database
D.display ospf interface

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3.多项选择题What two things will a router do when running a distance vector routing protocol? （）

A.Send periodic updates regardless of topology changes.
B.Send entire routing table to all routers in the routing domain.
C.Use the shortest-path algorithm to the determine best path.
D.Update the routing table based on updates from their neighbors.
E.Maintain the topology of the entire network in its database.

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4.多项选择题Which two Ethernet fiber-optic modes support distances of greater than 550 meters?（）

A.1000BASE-CX
B.100BASE-FX
C.1000BASE-LX
D.1000BASE-SX
E.1000BASE-ZX

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5.多项选择题What are two characteristics of RIPv2?（）

A.classful routing protocol
B.variable-length subnet masks
C.broadcast addressing
D.manual route summarization
E.uses SPF algorithm to compute path

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6.多项选择题Which two wireless encryption methods are based on the RC4 encryption algorithm? （）

A.WEP
B.CCKM
C.AES
D.TKIP
E.CCMP

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7.多项选择题What are two security appliances that can be installed in a network (Choose two.)（）。

A.ATM
B.IDS
C.IOS
D.IOX
E.IPS
F.SDM

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8.多项选择题下列静态路由器配置正确的是（）。

A.ip route-static 129.1.0.016 serial 0
B.ip route-static 10.0.0.216129.1.0.0
C.ip route-static 129.1.0.01610.0.0.2
D.ip route-static 129.1.0.0255.255.0.010.0.0.2

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9.多项选择题Which three statements are correct about RIP version 2 (Choose three.)（）。

A.It has the same maximum hop count as version 1
B.It uses broadcasts for its routing updates
C.It is a classless routing protocol
D.It has a lower default administrative distance than RIP version 1
E.It supports authentication
F.It does not send the subnet mask in updates

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10.单项选择题在路由协议所有接口上使能RIP协议的命令是（）。

A.network all
B.neighbor
C.enable
D.network 10.0.0.0

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